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Thread: Sanyo vs GP

  1. #1

    Default Sanyo vs GP

    Hi CSer,
    I am just back from Chicago.

    It was surprising me that my Sanyo rechargeable batt easly dead (5 shoots) compare to GP.
    Condition of Batt: Sanyo (just openned one day before my departure date), GP used few times.
    Temperature was -2deg C.

    Do you have this problem?

  2. #2
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    Default Re: Sanyo vs GP

    Quote Originally Posted by picky View Post
    Hi CSer,
    I am just back from Chicago.

    It was surprising me that my Sanyo rechargeable batt easly dead (5 shoots) compare to GP.
    Condition of Batt: Sanyo (just openned one day before my departure date), GP used few times.
    Temperature was -2deg C.

    Do you have this problem?
    If new battery, only once charge, it can't hold its power like after you charge few times.

    Sanyo 2500mAh also notorious for its self discharge.

    Regards,
    Arto.

  3. #3
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    Default Re: Sanyo vs GP

    Quote Originally Posted by picky View Post
    Hi CSer,
    I am just back from Chicago.

    It was surprising me that my Sanyo rechargeable batt easly dead (5 shoots) compare to GP.
    Condition of Batt: Sanyo (just openned one day before my departure date), GP used few times.
    Temperature was -2deg C.

    Do you have this problem?
    Get the Sanyo Eneloops, rated 2000mAH and can retain power for up to a year.
    Canon EOS 5D, 24-70 f/4 L IS, 50 f/1.2 L, 70-300 f/4-5.6 L IS, 600EX-RT. Sigma 12-24 f/4.5-5.6 EX.

  4. #4
    Senior Member zac08's Avatar
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    Default Re: Sanyo vs GP

    Quote Originally Posted by Snoweagle View Post
    Get the Sanyo Eneloops, rated 2000mAH and can retain power for up to a year.
    Not the power retention over time issue here... but the discharge rate when used...

  5. #5

    Default Re: Sanyo vs GP

    Quote Originally Posted by Artosoft View Post
    If new battery, only once charge, it can't hold its power like after you charge few times.

    Sanyo 2500mAh also notorious for its self discharge.

    Regards,
    Arto.
    I tried to re-charged again next day (can't believe) with Sanyo charger but still can't perform well in this kind of cold whether though...

    Certainly no problem (for Sanyo) after I came back and used it here.

  6. #6
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    Default Re: Sanyo vs GP

    Quote Originally Posted by zac08 View Post
    Not the power retention over time issue here... but the discharge rate when used...
    Oicic....the Eneloops have pretty strong life though, i'm very satisfied with it.
    Canon EOS 5D, 24-70 f/4 L IS, 50 f/1.2 L, 70-300 f/4-5.6 L IS, 600EX-RT. Sigma 12-24 f/4.5-5.6 EX.

  7. #7
    Member BlueBull's Avatar
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    Default Re: Sanyo vs GP

    When I was in Beijing in Dec 2006 (temp -4 to 4 c) my Sanyo rechargeables perfrom only to about 3/4 of its capabilities as compared to when used in Singapore or other warmer climates.

    They were used up noticeabily faster
    Nikanon D3FXMarkIIIDS-1H with 5000mm f/128 & 0.500mm Macro f/0.4 & 0.70-2000mm f/256

  8. #8
    Senior Member zac08's Avatar
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    Default Re: Sanyo vs GP

    I believe that the issue is heat... When the heat loss is too great for the batteries, they may tend to under-perform.

  9. #9
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    Default Re: Sanyo vs GP

    Quote Originally Posted by BlueBull View Post
    When I was in Beijing in Dec 2006 (temp -4 to 4 c) my Sanyo rechargeables perfrom only to about 3/4 of its capabilities as compared to when used in Singapore or other warmer climates.

    They were used up noticeabily faster
    Of cos....they batt life reduces in lower temperatures.
    Canon EOS 5D, 24-70 f/4 L IS, 50 f/1.2 L, 70-300 f/4-5.6 L IS, 600EX-RT. Sigma 12-24 f/4.5-5.6 EX.

  10. #10

    Default Re: Sanyo vs GP

    Quote Originally Posted by Artosoft View Post
    If new battery, only once charge, it can't hold its power like after you charge few times.

    Sanyo 2500mAh also notorious for its self discharge.

    Regards,
    Arto.

    Yes, even the replacements from Heeren are bad too.

  11. #11

    Default Re: Sanyo vs GP

    Quote Originally Posted by foxwagon View Post
    Yes, even the replacements from Heeren are bad too.
    As much as I hate witchhunts but I am very disappointed with Sanyo and their're replacements.

    It's such a gamble, some ok some ko.

    Wish I have da time to test every individual batt one by one, might as well change a trustworthy brand.

    I am happy after buying a different brand.
    Anyway, tats my personal experience.
    to those happen to have a good time with it.

  12. #12

    Default Re: Sanyo vs GP

    than ...
    What is a good brand of batt which will still perform well in cold whether?
    (let say 5~15deg C)
    Can recommend to me? as I may want to buy.

  13. #13
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    Default Re: Sanyo vs GP

    I think this is more of the property of NiMH batts.. can't work well in cold temperature..

    Li-ion is fine though..

    Brought cam and ext flash to a -20*C Ice room before. Fired flash once and that's it! The 4x 2500mah full charge Sanyo refuse to work! Can't recycle my flash at all!

  14. #14

    Default Re: Sanyo vs GP

    the flash draws tons of current to recharge. i'm not surprise the batteries failed on you. i saw a documentary on discovery channel awhile back and they said that their battery that could once hold a 120minute charge only lasted 20minutes in the snow..

  15. #15

    Default Re: Sanyo vs GP

    Quote Originally Posted by rinaldi86 View Post
    I think this is more of the property of NiMH batts.. can't work well in cold temperature..

    Li-ion is fine though..

    Brought cam and ext flash to a -20*C Ice room before. Fired flash once and that's it! The 4x 2500mah full charge Sanyo refuse to work! Can't recycle my flash at all!
    ya..ya... I was facing this problem when used Sanyo-2500.
    Fired once only than thats it although full charged. Sucks Sanyo batt !!!

    GP-2500 still work much better in cold temperature.

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    Default Re: Sanyo vs GP

    Don't know if this would be of any relevance, but years ago I was into electic radio-controlled modelling (R/C) and Sanyo Ni-Cd cells were the most popular. Even the expensive batt. packs were made of cells manufactured by Sanyo.

    Now, when I pick up an R/C magazine, I see that GP NiMH cells are the most popular. Hardly hear of Sanyo these days.

    I've given up on Sanyo AAs already. Confidence somewhat shaken. Switched to Powerex and GP 2700s for use in my flashguns and so far they've been serving me well.

  17. #17
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    Default Re: Sanyo vs GP

    Quote Originally Posted by synapseman View Post
    Don't know if this would be of any relevance, but years ago I was into electic radio-controlled modelling (R/C) and Sanyo Ni-Cd cells were the most popular. Even the expensive batt. packs were made of cells manufactured by Sanyo.

    Now, when I pick up an R/C magazine, I see that GP NiMH cells are the most popular. Hardly hear of Sanyo these days.

    I've given up on Sanyo AAs already. Confidence somewhat shaken. Switched to Powerex and GP 2700s for use in my flashguns and so far they've been serving me well.
    Sanyo's Eneloop rechargeable battery is good though.
    Sony Alpha 700 hobbyist

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